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Maciej Goszczycki nsmaciej

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@andkerosine
andkerosine / raskell.rb
Created August 15, 2012 05:56
Haskell-like list comprehensions in Ruby
$stack, $draws = [], {}
def method_missing *args
return if args[0][/^to_/]
$stack << args.map { |a| a or $stack.pop }
$draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end
class Array
def +@
@arvearve
arvearve / gist:4158578
Created November 28, 2012 02:01
Mathematics: What do grad students in math do all day?

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?

@ndarville
ndarville / business-models.md
Last active October 23, 2024 17:18
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google
@heygarrett
heygarrett / vimrc
Last active September 6, 2019 07:02
Solarized: Night & Day
" Set colorscheme to solarized
colorscheme solarized
" Change the Solarized background to dark or light depending upon the time of
" day (5 refers to 5AM and 17 to 5PM). Change the background only if it is not
" already set to the value we want.
function! SetSolarizedBackground()
if strftime("%H") >= 5 && strftime("%H") < 17
if &background != 'light'
set background=light
@embolalia
embolalia / gist:5660363
Last active December 17, 2015 19:29
A quick script that makes my raspi light up for different ping times. It's a terrible hack, and was not written with the intent of making it public. Please don't hurt me.
#!/usr/bin/env python
import RPi.GPIO as gpio
from time import sleep
import re
import sys
gpio.setmode(gpio.BCM)
red = 23
yel = 24
@padde
padde / openvpn.md
Last active April 30, 2018 17:11
OpenVPN on Ubuntu 12.10 at DigitalOcean

OpenVPN on Ubuntu 12.10 at DigitalOcean

Install OpenVPN

sudo apt-get install openvpn

Generate Server Certificates

sudo cp -r /usr/share/doc/openvpn/examples/easy-rsa/2.0 /etc/openvpn/easy-rsa2

cd /etc/openvpn/easy-rsa2

@bryanhunter
bryanhunter / MonokaiSW.md
Last active October 15, 2021 08:12
Mapping colors of the Monokai color scheme to their nearest Sherwin-Williams paint color
@jhjguxin
jhjguxin / nginx-403-forbidden-error-hosting-in-user-home-directory.md
Created August 12, 2013 05:40
nginx 403 forbidden error when server static file under user home directory
@aras-p
aras-p / preprocessor_fun.h
Last active November 15, 2024 09:22
Things to commit just before leaving your job
// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,
@sirupsen
sirupsen / segment_tree.c
Last active December 23, 2015 02:39
Memory mapped minimum range segment tree.
/*
* This is a simple example of using memory mapped I/O with a data structure.
* The data structure used is a minimum query segment tree. This data structure
* can answer queries of which value in some interval from i..j is the minimum
* in O(log(n)) time. Updates are also O(log(n)).
*
* The data structure is persisted to the file passed as the first argument to
* the compiled program. Memory mapped I/O is nice because:
*
* 1. You get the speed and convenience of accessing memory.